摘要
城市隧道设置一定长度的半敞开段,能显著改善隧道内的通风、照明及视觉效果,提高行车的安全性和舒适性,但顶板开洞使隧道结构的受力变得复杂。以郑州市某隧道为例,建立三维空间板壳模型,通过对顶板是否开洞,以及开洞后不同横梁布置情况下的隧道结构进行比较分析,探讨隧道半敞开段结构受力特性,得出一些结论,可供相似工程参考。
The semi-open section of a certain length in the urban tunnel can significantly improve the ventilation,lighting and visual effects in the tunnel,and improve the safety and comfort of driving.However,the opening of the roof makes the force of the tunnel structure more complicated.Taking a tunnel in Zhengzhou as an example,a three-dimensional spatial slab shell model is established.By comparing and analyzing the tunnel structure under the condition of setting crossbeam whether or not to open the roof and after opening,the force characteristics of semi-open section structure of the tunnel are discussed and some conclusions are obtained,which can be referenced for similar projects.
出处
《城市道桥与防洪》
2022年第1期217-220,M0019,共5页
Urban Roads Bridges & Flood Control
关键词
隧道半敞开段
空间板壳模型
比较分析
受力特性
semi-open section of tunnel
spatial slab shell model
comparative analysis
force characteristics
